Land-roller.



L gwdagnil No. 689,86l.

Ppjented Dec. 3|, 190i.

w. J. DUNHA'M. LAND ROLLER.

(Application filed July 15, 1901.;

(No Model.)

W/T/VESSES MLQI M E3 v @Armmvnr UNITED STATES PATENT O F-ICE.

WILEY J. DUNHAM, OF BEREA, OHIO.

LA'N D -ROLLER.

SPEGIFLLGATION forming part of Letters Patent No. 689,861, dated December 1- Applioation filed July 15, 1901. Serial No. 68,411. (No model.) I

To coZZ whom, it may concern:

Be it known that I, WILEY J. DUNHAM, a resident of Berea, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Land-Rollers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in land-rollers, and especially to that class known as flexible soil-pulverizers.

The object of my invention is to provide a soil-pnlverizer of this descriptionwhich will be simple in construction, while at the same time having its parts so arranged'and connected that the roller-sections will have free and adequate range of movementto accommodate themselves to unevenness of the ground and allow them to pass over stones and other obstructions without straining or injury to the machine.

My invention therefore consists in providing new andimproved means for securing the roller-sections together and new and improved means for mounting the draft-gear on the roller-sections.

My invention also consists of the features of construction and combination of parts hereinafter set forth in the specification, illustrated in the drawings, and pointed out in the claims.

In the accompanying drawings, Figure I represents a front elevation of my improved land-roller. Fig. II represents afront elevation of the same with the roller-sections inclined from the horizontal. Fig. III represents a plan view. Fig. IV represents a section on lines IV IV, Fig. I. Fig. V is a detail sectional view showing the hinge connection between the roller-sections.

Referring to the aforementioned drawings, a and I) represent the respective roller-sections of my soil-pulverizer. The section. a.

comprises a number of flat-toothed wheels at, independently mounted on a shaft 0 Over the wheels ct is mounted a rectangular frame 0, preferably formed of angle-iron. This frame is supported on the shaft a by V-shaped brackets c and c", which have suit able bearings 0 and 0 formed in their respective lower ends. The bracket 0 is preferably curved over the last wheel of the rollersection, and on the sides thereof are formed hinge members 0 and c"; The center of the frame is supported by a bracket d, having a bearing cZ formed in its lower end for the shaft a An arm d projects horizontally from the front of the bracket (Z on a level with the shaft (L The outer end of the arm d is reduced in size to form a neck d the end of which is screw-threaded and provided with a nut (Z The roller-section b is constructed similarly to the roller-section a andcomprises a series of fifth: toothed wheels 1), independently mounted on a shaft b On the shaft b over thewheels b is mounted a frame e, supported by the brackets e, e ,and f, having bearings e e, and f, respectively, fitting on the shaft Z3 An arm f extends horizontally from the front of the bracketf, and at the end of the arm is formed a neck f which is screwthreadedand provided with a nut f.

The bracket eis preferably curved over the adjacent wheel of the roller-section and is provided on its sides with hinge members 6 and cf. The hinge members 0 and c on the bracket 0 are secured to the hinge members e and e on the bracket e by pinsg and g.

it represents the draft-bar of the machine, which is provided with enlarged end plates 71' and 72 in which are formed horizontal slots h and h, respectively. a The draft-bar is secured to the frame by inserting the necks d and f into theslots Wand 72 respectively, and then securing the nuts d and f on the outer ends thereof.

The frames 0 and 6 form supports for another rectangular frame Z, which is mounted centrally over the two roller-sections. frame Z is supported on the frames 0 and e by means of brackets Z, Z Z and Z respectively. These brackets are'preferably broad at their lower ends and taper toward their upper ends, where they are rigidly secured to the frame Z. In the lower ends of the said brackets are formed horizontal slotsZ Z, Z and Z respectively. The lower ends of the brackets are secured to the frames 0 and 6, respectively, by means of bolts m and m, which The pass through the slots Z and Z and Z and Z respectively, and holes in the sides of the respective frames.

On the top of the frame I is mounted a tongue 11 and a seat 0, which is preferably supported by a spring 0'. The operation of my machine, which will be readily understood, is as follows: When the machine is passing over the ground, if any obstacle or any unevenness of the ground is encountered near the center of the machine the roller-see tions will tip up at their inner ends, as shown in Fig. II, the outerends of the rollers remaining on the ground, and the machine will pass over the obstruction without straining or injuring any'of its parts. If unevenness of ground is encountered at the outer ends of the roller-sections, the rollers will tip at their outer ends, the inner ends of the roller-sections remaining on the ground.

My improved method of securing the draftgear and mounting the seat gives great stability to the machine and permits quite a large range of movement to the rollersections without increasing the labor of operation or causing any inconvenience to the operator.

What I claim is 1. In a land-roller the combination of a plurality of roller-sections each roller-section havinga separate and independent shaft, a frame mounted on each of said shafts of said roller-sections, hinge-joints connecting the adjacent ends of said frames, a main frame located above said first-mentioned frames, and means for securing said main frame on said lower frames, comprising a pin-and-slot device, substantially as described and for the purpose set forth.

2. In a land-roller, the combination of two roller-sections, each roller-section having a separate and independent shaft, a rectangular frame supported above each of said rollersections by brackets mounted on the said shafts of the said roller-sections, an arm extending horizontally from one of the brackets of each of the said roller-sections, a draftbar provided with horizontal slots adapted to receive the ends of the said arms, a main frame located above said firstmentioned frames, and brackets for supporting said main frame, said brackets being rigidly secu red to said main frame and shiftably secured to said lower frames by means of a pin-and-slot device, substantially as described and for the purpose set forth.

3. In a land-roller, the combination of two roller-sections, each roller-section having a separate shaft, a rectangular frame supported above each of said roller-sections by brackets mounted on the said shafts of the said rollersections, an arm extending horizontally from one of the brackets of each of the said rollersections, a draft-bar provided with horizontal slots adapted to receive the ends of the said arms, a main frame located above the said first-mentioned frames, means for supporting said main frame on said first-mentioned frames so as to allow the said firstmentioned frames to assume angular positions with respect to the said main frame and to each other, and a tongue secured to saidmain frame, substantially as described and for the purpose set forth.

4. In aland-roller, the combination of aplurality of roller-sections, each section having an independent shaft, supports mounted on each of said shafts of said roller-sections, a seat-carrying frame located above said-support, a pin-and-slot device for securing said seat-carrying frame on said supports, arms rigidly secured to and extending horizontally from said supports, a draft-bar, and a pinand-slot device forming operative connections between the respective ends of the draft-bar and the respective arms, substantially as described and for the purpose set forth.

5. In a land-roller, a combination of two roller-sections each roller-section having a separate andindependentshaft,arectangular frame supported above each of said roller-sections by means of brackets mounted on said shafts of said roller-sections, a main frame lo-' cated above said first-mentioned frames, and brackets forming a shiftable connection-between the said main frame and saidfirst-mentioned frames, substantially as described'and for the purpose set forth.

Signed byme at Cleveland, Ohio, this 10th day of July, 1901.

WILEY J. DUNHAM; Witnesses:

VICTOR G. LYNCH, A. II. PARRATT. 

